6ENW | pdb_00006enw

X-ray structure of Auoxo4-encapsulated horse spleen apoferritin

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 
    0.236 (Depositor), 0.262 (DCC) 
  • R-Value Work: 
    0.184 (Depositor) 
  • R-Value Observed: 
    0.186 (Depositor) 

Starting Model: experimental
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wwPDB Validation 3D Report Full Report

Validation slider image for 6ENW

This is version 1.1 of the entry. See complete history. 

Literature

Ferritin nanocages loaded with gold ions induce oxidative stress and apoptosis in MCF-7 human breast cancer cells.

Monti, D.M., Ferraro, G., Petruk, G., Maiore, L., Pane, F., Amoresano, A., Cinellu, M.A., Merlino, A.

(2017) Dalton Trans 46: 15354-15362

  • DOI: https://doi.org/10.1039/c7dt02370g
  • Primary Citation Related Structures: 
    6ENV, 6ENW

  • PubMed Abstract: 

    Two anticancer gold(iii) compounds, Au2phen and Auoxo4, were encapsulated within a ferritin nanocage. The gold-compound loaded proteins were characterized by UV-Vis spectroscopy, inductively coupled plasma mass spectrometry and circular dichroism. X-ray crystallography shows that the compounds degrade upon encapsulation and gold(i) ions bind Ft within the cage, close to the side chains of Cys126. The gold-encapsulated nanocarriers are cytotoxic to human cancer cells. Au(i)-loaded Ft, obtained upon the encapsulation of Au2phen within the cage, induces oxidative stress activation, which finally leads to apoptosis in MCF-7 cells.

    • Organizational Affiliation: 
    • Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, Via Cintia, I-80126, Napoli, Italy. antonello.merlino@unina.it.

Macromolecule Content 

  • Total Structure Weight: 21.61 kDa 
  • Atom Count: 1,615 
  • Modeled Residue Count: 173 
  • Deposited Residue Count: 174 
  • Unique protein chains: 1

Macromolecules

Find similar proteins by:
|  3D Structure
Entity ID: 1
MoleculeChains  Sequence LengthOrganismDetailsImage
Ferritin light chain174Equus caballusMutation(s): 0 
UniProt
Find proteins for P02791 (Equus caballus)
Explore P02791 
Go to UniProtKB:  P02791
Entity Groups
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP02791
Sequence Annotations
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Reference Sequence

Small Molecules

Ligands 4 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
AU

Query on AU


Download:Ideal Coordinates CCD File
O [auth A],
P [auth A]		GOLD ION
Au
ZBKIUFWVEIBQRT-UHFFFAOYSA-N
CD

Query on CD


Download:Ideal Coordinates CCD File
B [auth A]
C [auth A]
D [auth A]
E [auth A]
F [auth A]
B [auth A],
C [auth A],
D [auth A],
E [auth A],
F [auth A],
G [auth A],
H [auth A],
I [auth A],
J [auth A],
K [auth A]
CADMIUM ION
Cd
WLZRMCYVCSSEQC-UHFFFAOYSA-N
GOL

Query on GOL


Download:Ideal Coordinates CCD File
M [auth A],
N [auth A]		GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
CL

Query on CL


Download:Ideal Coordinates CCD File
L [auth A]CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free:  0.236 (Depositor), 0.262 (DCC) 
  • R-Value Work:  0.184 (Depositor) 
  • R-Value Observed: 0.186 (Depositor) 
Space Group: F 4 3 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 180.878α = 90
b = 180.878β = 90
c = 180.878γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling
PHASERphasing

Structure Validation

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View more in-depth experimental data

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2017-12-13
    Type: Initial release
  • Version 1.1: 2024-01-17
    Changes: Data collection, Database references, Derived calculations, Refinement description